EP 0340663 A3 19910703 - PROCESS FOR THE OBTENTION OF ENANTIOMERS OF 2-ARYLPROPIONIC ACIDS

Title (en)

PROCESS FOR THE OBTENTION OF ENANTIOMERS OF 2-ARYLPROPIONIC ACIDS

Publication

EP 0340663 A3 19910703 (DE)

Application

EP 89107758 A 19890428

Priority

DE 3814887 A 19880502

Abstract (en)

[origin: EP0340663A2] Enantiomers of 2-arylpropionic acids are obtained by reaction of a racemic mixture thereof with an amine enantiomer by converting the racemate of 2-arylpropionic acid into the diastereomeric salts using an optically active form of threo-1-p-nitrophenyl-2-aminopropane- 1,3-diol, separating these salts and converting the pure diastereomers thus obtained into the free acids of the enantiomeric forms of 2-arylpropionic acid or salts thereof.

IPC 1-7

C07C 51/487; C07C 57/30; C07C 59/64; C07C 57/58; C07D 209/82

IPC 8 full level

C07B 55/00 (2006.01); C07B 57/00 (2006.01); C07C 51/353 (2006.01); C07C 51/487 (2006.01); C07C 57/30 (2006.01); C07C 57/32 (2006.01); C07C 57/58 (2006.01); C07C 59/64 (2006.01); C07C 59/66 (2006.01); C07D 209/88 (2006.01)

CPC (source: EP KR US)

C07C 51/487 (2013.01 - EP US); C07C 61/08 (2013.01 - KR); C07D 209/88 (2013.01 - EP US)

Citation (search report)

[X] US 4621152 A 19861104 - BERNINI GIUSEPPE [IT]
[X] DE 2007177 A1 19701001
[A] DE 2362687 A1 19750619 - DEGUSSA
[A] CHEMICAL ABSTRACTS, Band 80, 1974, Seite 328, Zusammenfassung Nr. 82103z, Columbus, Ohio, US; SU-A-408 943 (ALL-UNION SCIENTIFIC-RESEARCH INSTITUTE OF THE CELLULOSE-PAPER INDUSTRY) 30-11-1973

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0340663 A2 19891108; EP 0340663 A3 19910703; AU 3333989 A 19891102; AU 607856 B2 19910314; CN 1037503 A 19891129; DD 283802 A5 19901024; DE 3814887 C1 19890921; FI 892007 A0 19890427; FI 892007 A 19891103; HU 204492 B 19920128; HU T50090 A 19891228; IL 90090 A0 19891215; JP H02138237 A 19900528; KR 890017223 A 19891215; NO 171783 B 19930125; NO 171783 C 19930505; NO 891793 D0 19890428; NO 891793 L 19891103; US 4973745 A 19901127; ZA 893107 B 19900131

DOCDB simple family (application)

EP 89107758 A 19890428; AU 3333989 A 19890426; CN 89103035 A 19890502; DD 32803689 A 19890427; DE 3814887 A 19880502; FI 892007 A 19890427; HU 204289 A 19890428; IL 9009089 A 19890425; JP 11402589 A 19890501; KR 890005931 A 19890502; NO 891793 A 19890428; US 34571689 A 19890501; ZA 893107 A 19890426